489 lines
18 KiB
Python
489 lines
18 KiB
Python
"""Application entry point for the warehouse desktop tool.
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This module wires together the shared async database client, the global
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background event loop and the different Tk/CustomTkinter windows exposed by the
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project.
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"""
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import asyncio
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import ctypes
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import sys
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import tkinter as tk
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import time
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import customtkinter as ctk
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from tkinter import messagebox
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from async_loop_singleton import get_global_loop
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from async_msssql_query import AsyncMSSQLClient
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from audit_log import log_session_event
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from db_config import build_dsn_from_config, ensure_db_config
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from gestione_layout import open_layout_window
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from gestione_pickinglist import open_pickinglist_window
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from login_window import prompt_login
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from locale_text import load_locale_catalog, text as loc_text
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from reset_corsie import open_reset_corsie_window
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from search_pallets import open_search_window
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from tooltips import WidgetToolTip, load_tooltip_catalog, tooltip_text
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from ui_theme import theme_font, theme_section, theme_value
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from user_session import UserSession, create_user_session
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from view_celle_multi_udc import open_celle_multiple_window
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from window_placement import (
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cascade_children_below_parent,
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place_window_below_parent_later,
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place_window_fullsize_below_parent_later,
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)
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# Development shortcut: skip the login dialog and boot directly as MAG1.
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# Set to False when you want to restore normal authentication.
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BYPASS_LOGIN = False
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BYPASS_LOGIN_USER = {
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"operator_id": 4,
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"login": "MAG1",
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"nominativo": "MAG1",
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"privilegio": 3,
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"codice_unita": "U1",
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}
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if sys.platform.startswith("win"):
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try:
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asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
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except Exception:
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pass
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# Create one global loop and make it the default everywhere.
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_loop = get_global_loop()
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asyncio.set_event_loop(_loop)
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def _noop(*args, **kwargs):
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"""Compatibility no-op used when optional Tk DPI hooks are missing."""
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return None
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if not hasattr(tk.Toplevel, "block_update_dimensions_event"):
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tk.Toplevel.block_update_dimensions_event = _noop # type: ignore[attr-defined]
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if not hasattr(tk.Toplevel, "unblock_update_dimensions_event"):
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tk.Toplevel.unblock_update_dimensions_event = _noop # type: ignore[attr-defined]
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db_app: AsyncMSSQLClient | None = None
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_APP_MUTEX = None
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_APP_MUTEX_NAME = "Local\\WarehousePythonAppSingleton"
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def _acquire_single_instance_mutex() -> bool:
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"""Return ``True`` only for the first running instance of the application."""
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global _APP_MUTEX
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if not sys.platform.startswith("win"):
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return True
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kernel32 = ctypes.windll.kernel32
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mutex = kernel32.CreateMutexW(None, False, _APP_MUTEX_NAME)
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if not mutex:
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return True
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last_error = kernel32.GetLastError()
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_APP_MUTEX = mutex
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ERROR_ALREADY_EXISTS = 183
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return last_error != ERROR_ALREADY_EXISTS
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def _build_bypass_session() -> UserSession:
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"""Create the development session used when authentication is bypassed."""
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return create_user_session(
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operator_id=int(BYPASS_LOGIN_USER["operator_id"]),
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login=str(BYPASS_LOGIN_USER["login"]),
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nominativo=str(BYPASS_LOGIN_USER["nominativo"]),
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privilegio=int(BYPASS_LOGIN_USER["privilegio"]),
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codice_unita=str(BYPASS_LOGIN_USER["codice_unita"]),
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)
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class Launcher(ctk.CTk):
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"""Main launcher window that exposes the available warehouse tools."""
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_WINDOW_ORDER = [
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"reset_corsie",
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"layout",
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"multi_udc",
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"search",
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"pickinglist",
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]
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def __init__(self, session: UserSession, db_client: AsyncMSSQLClient):
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"""Create the launcher toolbar and wire every button to a feature window."""
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super().__init__()
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self.session: UserSession = session
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self.db_client = db_client
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self._theme = theme_section("launcher", {})
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self._locale_catalog = load_locale_catalog()
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self._tooltip_catalog = load_tooltip_catalog()
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self._child_windows: list[tk.Misc] = []
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self._child_windows_by_key: dict[str, tk.Misc] = {}
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self._is_cascading = False
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self._focus_restore_pending: set[str] = set()
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self._restore_suppressed_until = 0.0
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self.title(
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f"{loc_text('launcher.window_title', catalog=self._locale_catalog, default='Warehouse 1.0.0')} - {self.session.display_name}"
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)
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self._apply_dynamic_geometry()
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outer_pady = int(theme_value(self._theme, "outer_pady", 10))
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outer_padx = int(theme_value(self._theme, "outer_padx", 0))
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info_padx = int(theme_value(self._theme, "info_padx", 6))
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info_pady = theme_value(self._theme, "info_pady", [4, 2])
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button_padx = int(theme_value(self._theme, "button_padx", 6))
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button_pady = int(theme_value(self._theme, "button_pady", 6))
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max_buttons_per_row = max(1, int(theme_value(self._theme, "max_buttons_per_row", 7)))
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wrap = ctk.CTkFrame(self)
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wrap.pack(padx=outer_padx, pady=outer_pady, fill="x")
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actions = [
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(
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"reset_corsie",
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loc_text("launcher.reset_corsie", catalog=self._locale_catalog, default="Gestione Corsie"),
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"launcher.open_reset_corsie",
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lambda: self._open_child_window(
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"reset_corsie",
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open_reset_corsie_window(self, self.db_client, session=self.session),
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),
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),
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(
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"layout",
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loc_text("launcher.layout", catalog=self._locale_catalog, default="Gestione Layout"),
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"launcher.open_layout",
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lambda: self._open_child_window(
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"layout",
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open_layout_window(self, self.db_client, session=self.session),
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),
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),
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(
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"multi_udc",
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loc_text("launcher.multi_udc", catalog=self._locale_catalog, default="UDC Fantasma"),
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"launcher.open_multi_udc",
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lambda: self._open_child_window(
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"multi_udc",
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open_celle_multiple_window(self, self.db_client, session=self.session),
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),
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),
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(
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"search",
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loc_text("launcher.search", catalog=self._locale_catalog, default="Ricerca UDC"),
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"launcher.open_search",
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lambda: self._open_child_window(
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"search",
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open_search_window(self, self.db_client, session=self.session),
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),
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),
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(
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"pickinglist",
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loc_text("launcher.pickinglist", catalog=self._locale_catalog, default="Gestione Picking List"),
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"launcher.open_pickinglist",
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lambda: self._open_child_window(
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"pickinglist",
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open_pickinglist_window(self, self.db_client, session=self.session),
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),
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),
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(
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"arrange",
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loc_text("launcher.arrange", catalog=self._locale_catalog, default="Ridisponi finestre"),
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"launcher.arrange_windows",
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self._cascade_open_windows,
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),
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(
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"exit",
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loc_text("launcher.exit", catalog=self._locale_catalog, default="Esci"),
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"launcher.exit",
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self._shutdown,
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),
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]
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used_columns = max(1, min(len(actions), max_buttons_per_row))
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info = ctk.CTkLabel(
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wrap,
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text=loc_text(
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"launcher.operator",
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catalog=self._locale_catalog,
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default="Operatore: {display_name} ({login})",
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).format(display_name=self.session.display_name, login=self.session.login),
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anchor="w",
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font=theme_font(self._theme, "info_font", default=("Segoe UI", 12, "bold")),
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)
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info.grid(row=0, column=0, columnspan=used_columns, padx=info_padx, pady=tuple(info_pady), sticky="ew")
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for idx, (_key, label, permission, callback) in enumerate(actions):
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row = 1 + (idx // max_buttons_per_row)
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column = idx % max_buttons_per_row
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button = ctk.CTkButton(
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wrap,
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text=label,
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font=theme_font(self._theme, "button_font", default=("Segoe UI", 11, "bold")),
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state="normal" if self.session.can(permission) else "disabled",
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command=callback,
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)
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button.grid(row=row, column=column, padx=button_padx, pady=button_pady, sticky="ew")
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tip = tooltip_text(permission, catalog=self._tooltip_catalog)
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if tip:
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WidgetToolTip(button, tip)
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for i in range(max_buttons_per_row):
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wrap.grid_columnconfigure(i, weight=1)
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self.update_idletasks()
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self._apply_dynamic_geometry()
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self.protocol("WM_DELETE_WINDOW", self._shutdown)
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try:
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self.lift()
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self.focus_force()
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except Exception:
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pass
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def _apply_dynamic_geometry(self) -> None:
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"""Size the launcher around its current content and keep it docked at the top."""
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top_x = int(theme_value(self._theme, "window_top_x", 0))
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top_y = int(theme_value(self._theme, "window_top_y", 0))
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min_width = int(theme_value(self._theme, "window_min_width", 960))
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target_width = int(theme_value(self._theme, "window_width", 1280))
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requested_width = max(min_width, self.winfo_reqwidth())
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width = max(min_width, target_width, requested_width)
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height = max(80, self.winfo_reqheight())
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self.geometry(f"{width}x{height}+{top_x}+{top_y}")
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def _open_child_window(self, key: str, window: tk.Misc | None) -> None:
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"""Track child windows opened from the launcher."""
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if window is None:
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return
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self._child_windows = [w for w in self._child_windows if getattr(w, "winfo_exists", lambda: False)()]
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if window not in self._child_windows:
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self._child_windows.append(window)
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self._child_windows_by_key = {
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child_key: child
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for child_key, child in self._child_windows_by_key.items()
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if getattr(child, "winfo_exists", lambda: False)()
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}
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self._child_windows_by_key[key] = window
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try:
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window.bind(
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"<Destroy>",
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lambda event, win=window, win_key=key: self._forget_child_window(win_key, win, event.widget),
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add="+",
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)
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except Exception:
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pass
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try:
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window.bind(
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"<Activate>",
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lambda event, win=window, win_key=key: self._on_child_activate(win_key, win, event.widget),
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add="+",
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)
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except Exception:
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pass
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try:
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window.bind(
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"<FocusIn>",
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lambda event, win=window, win_key=key: self._on_child_activate(win_key, win, event.widget),
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add="+",
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)
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except Exception:
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pass
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def _forget_child_window(self, key: str, window: tk.Misc, event_widget: tk.Misc | None = None) -> None:
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"""Remove stale references to child windows that have been closed."""
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if event_widget is not None and event_widget is not window:
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return
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try:
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tracked = self._child_windows_by_key.get(key)
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if tracked is window:
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self._child_windows_by_key.pop(key, None)
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except Exception:
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pass
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try:
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self._child_windows = [w for w in self._child_windows if w is not window and getattr(w, "winfo_exists", lambda: False)()]
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except Exception:
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pass
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def _widget_belongs_to_window(self, window: tk.Misc, widget: tk.Misc | None) -> bool:
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"""Return True when an event widget is the toplevel itself or one of its descendants."""
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if widget is None:
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return True
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if widget is window:
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return True
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try:
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current = widget
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while current is not None:
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if current is window:
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return True
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parent_name = current.winfo_parent()
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if not parent_name:
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break
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current = current.nametowidget(parent_name)
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except Exception:
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pass
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return False
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def _on_child_activate(self, key: str, window: tk.Misc, event_widget: tk.Misc | None = None) -> None:
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"""Restore an activated child to the primary slot below the launcher."""
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if self._is_cascading:
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return
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if time.monotonic() < self._restore_suppressed_until:
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return
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if event_widget is not None and event_widget is not window:
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return
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tracked = self._child_windows_by_key.get(key)
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if tracked is not window or not getattr(window, "winfo_exists", lambda: False)():
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return
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if key in self._focus_restore_pending:
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return
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self._focus_restore_pending.add(key)
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def _restore() -> None:
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try:
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tracked_now = self._child_windows_by_key.get(key)
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if tracked_now is window and getattr(window, "winfo_exists", lambda: False)():
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place_window_below_parent_later(self, window)
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try:
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window.lift()
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except Exception:
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pass
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finally:
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try:
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self.after(250, lambda: self._focus_restore_pending.discard(key))
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except Exception:
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self._focus_restore_pending.discard(key)
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try:
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self.after(0, _restore)
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except Exception:
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self._focus_restore_pending.discard(key)
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def _cascade_open_windows(self) -> None:
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"""Cascade all open child windows following launcher button order."""
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self._child_windows = [w for w in self._child_windows if getattr(w, "winfo_exists", lambda: False)()]
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self._child_windows_by_key = {
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key: window
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for key, window in self._child_windows_by_key.items()
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if getattr(window, "winfo_exists", lambda: False)()
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}
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ordered_windows = [
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self._child_windows_by_key[key]
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for key in self._WINDOW_ORDER
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if key in self._child_windows_by_key
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]
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self._is_cascading = True
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self._focus_restore_pending.clear()
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self._restore_suppressed_until = time.monotonic() + 1.2
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cascade_children_below_parent(
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self,
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ordered_windows,
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x_offset_step=int(theme_value(self._theme, "cascade_x_offset", 28)),
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y_offset_step=int(theme_value(self._theme, "cascade_y_offset", 28)),
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margin_left=int(theme_value(self._theme, "cascade_margin_left", 0)),
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margin_top=int(theme_value(self._theme, "cascade_margin_top", 0)),
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)
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def _finish_cascade() -> None:
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self._is_cascading = False
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self._restore_suppressed_until = 0.0
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try:
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self.lift()
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self.focus_force()
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except Exception:
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pass
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try:
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self.after(250, _finish_cascade)
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except Exception:
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self._is_cascading = False
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def _shutdown(self) -> None:
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"""Dispose session and shared DB resources before closing the launcher."""
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try:
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if self.session is not None:
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log_session_event(self.session, action="logout", outcome="ok")
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if self.db_client is not None:
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fut = asyncio.run_coroutine_threadsafe(self.db_client.dispose(), _loop)
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try:
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fut.result(timeout=2)
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except Exception:
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pass
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finally:
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self.destroy()
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if __name__ == "__main__":
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ctk.set_appearance_mode("light")
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ctk.set_default_color_theme("green")
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if not _acquire_single_instance_mutex():
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root = tk.Tk()
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root.withdraw()
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messagebox.showwarning(
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loc_text("launcher.already_running_title", default="Warehouse"),
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loc_text(
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"launcher.already_running_message",
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default="L'applicazione e' gia' in esecuzione.\nChiudi l'istanza aperta prima di avviarne un'altra.",
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),
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parent=root,
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)
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try:
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root.destroy()
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except Exception:
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pass
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raise SystemExit(0)
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db_cfg = ensure_db_config(_loop)
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if db_cfg is None:
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raise SystemExit(0)
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db_app = AsyncMSSQLClient(build_dsn_from_config(db_cfg))
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if BYPASS_LOGIN:
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session = _build_bypass_session()
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log_session_event(
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session,
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action="login.bypass",
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outcome="ok",
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details={"login": session.login},
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)
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bootstrap = None
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else:
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bootstrap = tk.Tk()
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bootstrap.geometry("1x1+0+0")
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bootstrap.overrideredirect(True)
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bootstrap.attributes("-alpha", 0.0)
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bootstrap.deiconify()
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bootstrap.update_idletasks()
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session = prompt_login(bootstrap, db_app)
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if session is None:
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if db_app is not None:
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fut = asyncio.run_coroutine_threadsafe(db_app.dispose(), _loop)
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try:
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fut.result(timeout=2)
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except Exception:
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pass
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try:
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if bootstrap is not None:
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bootstrap.destroy()
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except Exception:
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pass
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raise SystemExit(0)
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try:
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if bootstrap is not None:
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bootstrap.destroy()
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except Exception:
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pass
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Launcher(session, db_app).mainloop()
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